Float valve



FIG. 1 is a side elevational view of a float valve, showing my newdesign the opposite side being a mirror image thereof;

FIG. 2 is a top view;

FIG. 3 is a bottom view;

FIG. 4 is a rear view; and,

FIG. 5 is a front view.

The ornamental design for a float valve, as shown and described.